TY - BOOK AU - Barnes, Colin TI - Mathematics for plumbers SN - 009129231x U1 - 510.24696 PY - 1979/// CY - London PB - Hutchinson KW - Mathematics. Mathematics For plumbing N1 - 1. The metric system 2. Quantities, units and abbreviations in common use 3. Addition and subtraction 4. Multiplication and division 5. Decimals and fractions 6. Ratios 7. Percentages 8. Averages 9. The use of symbols 10. Formulae 11. Pythagoras' theorem and square root tables 12. Moments 13. Levers 14. Water pressure 15. Box's formula 16. Chezy formula 17. Logarithms 18. Temperature scales and conversion tables 19. Conversion tables ER -